Table 6.

Retrospective results.

	Studies, n	Participants, n	Pooled estimate of effect size	95% CI	I2 test	Q-test	df	P-value	Statistical model
Union	3	335	91.4%	81.0%–98.0%	85.4%	13.8	2	0.0010	Random effects
Early union	3	335	75.9%	66.6%–84.1%	67.9%	6.2	2	0.0443	Random effects
Delayed union	3	335	12.2%	6.7%–19.0%	62.2%	5.3	2	0.0708	Random effects
Non-union	4	486	11.0%	3.7%–21.5%	89.7%	29.2	3	<0.0001	Random effects
Malunion	2	133	10.3%	5.7%–16.7%	0.0%	0.4	1	<0.0001	Fixed effects
Deep infection	4	492	7.4%	5.3%–10.1%	39.3%	4.9	3	0.1760	Fixed effects